43083
domain: N
Appears in sequences
- a(n) = A077704(n+1)/A077704(n).at n=29A077705
- Least k such that decimal representation of k*n contains only digits 0 and 9.at n=22A096688
- Number of (2+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.at n=38A250757
- Expansion of Product_{k>=1} (1-x^(3*k-1))^(3*k-1) * (1-x^(3*k-2))^(3*k-2).at n=33A285247
- a(n) = 4*p(n-1)*p(n+1) - p(n)^2, where p(k) = k-th prime.at n=29A327447